checking automake version in configure.ac

[Vincent Torri]

Hey,

I would like to conditionnaly use a feature (a macro) of automake 1.11 
with system that don't necessary have it installed.

So I would like to know if it is possible to check the version of automake 
in configure.ac, something like

if test "$automake_version" = "1.11" ; then
 ***
fi

or something similar

thank you

Vincent Torri